Toward a quantitative characterization of heterogeneous ice formation with lidar/radar: Comparison of CALIPSO/CloudSat with ground‐based observations
Toward a quantitative characterization of heterogeneous ice formation with lidar/radar: Comparison of CALIPSO/CloudSat with ground‐based observations
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DOI：
10.1002/grl.50792
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发表时间：
2013-08
影响因子：
5.2
通讯作者：
J. Bühl;A. Ansmann;P. Seifert;H. Baars;R. Engelmann
中科院分区：
文献类型：
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作者：
J. Bühl;A. Ansmann;P. Seifert;H. Baars;R. Engelmann
我们分析和比较气溶胶/云激光雷达和35-GHz云雷达探测中层云结冰的不同灵敏度，以协调激光雷达和雷达进行的混合相云观测。我们发现，在德国莱比锡的星载云-气溶胶激光雷达和红外探路者卫星观测（CALIPSO）/CloudSat和地面激光雷达/雷达观测之间存在良好的一致性。然而，与之前的一项研究相比，发现了很大的差异，该研究仅基于激光雷达观测的11年云统计数据，这是由云雷达检测冰晶的灵敏度显着提高引起的。通过引入冰水含量10 - 6 kgm-3的激光雷达检测阈值，我们发现激光雷达和雷达云统计数据变得越来越相似。
We analyze and compare the different sensitivities of aerosol/cloud lidar and 35‐GHz cloud radar to detect ice formation in midlevel clouds in order to harmonize mixed phase cloud observations performed with lidar and radar. We found good agreement between spaceborne Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO)/CloudSat and ground‐based lidar/radar observations at Leipzig, Germany. However, large differences were found to a previous study with an 11‐year cloud statistics solely based on lidar observations which is caused by significantly higher sensitivity of the cloud radar to detect ice crystals. By introducing a lidar detection threshold for the ice water content of 10−6kgm−3, we find that lidar and radar cloud statistics become increasingly similar.